Lee, Chang-Gi Lee, Won-Hyoung Yoo, Boryung Lee, Sungho Ahn, Jae-Pyoung El-Zoka, Ayman A. Kim, Se-Ho 2025-11-21T02:01:47Z 2025-11-21T02:01:47Z 2025-11-11 2026-01 0002-7820 https://pubs.kist.re.kr/handle/201004/153585 Zeolites consist of an aluminosilicate framework that incorporates cations such as Na, Mg, etc., and contains micropores capable of sieving molecules. However, prolonged exposure to moisture can lead to atomic-scale deformation such as dealumination and cation redistribution, which significantly affects the adsorption performance of the zeolite. Despite its significance, the atomic-scale mechanisms of water-induced degradation remain poorly understood. Herein, the degradation of zeolite 13X by moisture is examined via quantitative and statistical clustering analyses in atom probe tomography. Na clustering is identified as a critical factor that accelerates structural degradation in parallel with dealumination, even at room temperature. These findings highlight the importance of optimizing Si/Al ratios to mitigate moisture-induced damage and provide practical guidance for improving the stability and performance of zeolites in industrial applications. English American Ceramic Society Atomic-scale analysis of long-term degraded zeolite 13X Article 10.1111/jace.70309 1 Journal of the American Ceramic Society, v.109, no.1 Journal of the American Ceramic Society 109 1 N scie scopus 001594549600001 2-s2.0-105019195690 Materials Science, Ceramics Materials Science Article EXTRAFRAMEWORK ALUMINUM PROBE TOMOGRAPHY ADSORPTION CATION STABILITY SINGLE SITES alkali ion clustering atom probe tomography moisture degradation zeolite 13X